Hollow body of fibrous material.



J. C. WARD.

HOLLOW BODY OF FIBROUS MATERIAL.

APPLICATION FILED JAN-28,1918- v Patented Apr. 30, 1918;

M A M composed of Referring to v the mama terrier:-

zrornv c. wrasjorevnrer; MliSAOI-IUSETTS, ns'srenon To wmTnnorcoaronaTron, or BOSTON, MASSACHUSETTS, A CORPORATION, orMAssAcHUsnTTs.

HonLovv on or rrrnous MATERIAL.

To all .whomit may concern:

1 Be itknown that 1, JOHN G. WARD, a citizen of theUnited States, anda resident of Quincy, in the countyof Norfolk and State of Massachusetts, have invented an'jlmprovement in Hollow" ,Bodies, of Fibrous Material, of which the following descrip tion, in connection with the accompanying drawings, is aspecification, like characters on the drawings representing like parts. y

This invention relates to a hollow body a strip of fibrous material wound into a plurality of overlapping convolutions which are cemented together, and substantially such as shown and described in U. S. Patent No. 1,156,193 granted to me October 12, 1915, and has for its object to improve hollow fibrous bodies of the character described, and especially conical hollow bodies, whereby they are rendered more durable, stronger and more efficient in operation.

To this end, the hollow body is provided at its base or lower end with a culf of fibrous material, which is folded over or under the lower edge of the hollow body and is extended up on the inner and outer surfaces of said body and cemented thereto, and when the hollow body is made in the form of a cone, the upper end thereof is rounded over toward the axial center of the cone and burnished to form a smooth, rounded, external surface at the upper end of the cone to facilitate unwinding of the thread, yarn or the like from the same and prevent breaking thereof.

The particular features of the invention will be pointed out in the claims at the end of this specification.

Figure 1 is an elevation of a cone embodying this invention.

Fig. 2, a section on an enlarged scale of the base portion of the cone to clearly illustrate the culf thereon, and

Fig. 3, an enlarged section of the upper end of the cone to illustrate the rounded over external surface thereof.

drawings or represents a hollow body in the form of a cone, which is open at its upper and lower ends I), a, and which is composed of a strip of fibrous material, such as paper, which strip is folded at one end to form a folded portion 10 and a body portion 12 of greater width than J Specificationof Letters Patent. 1 Application filed January 28, 1918. Serial No. 214,110.

'ri'al applied l to Patentedihpr. SQJMTS.

folded "portion, and which strip is wound into aplurality of overlapping convolutions' withthe folded body POltiOIlrlO of one convolution cemented to the unfolded. bodyportion '12 of'a preceding convolution by a layer or coating of adhesive mate the fibrous strip before the latter is folded and indicated by the heavy line The hollow cone as thus far clescribed is and may be substantially the same as shown and described in the patent re ferred to and is not herein claimed broadly.

The present invention has for its object to improve the cone a so as to render the same more durable, stronger and more eificient in operation, especially when the yarn, thread or the like is unwound.

To this end, the base portion 0 of the cone is provided with a cuff d of relatively thin paper or like fibrous material, which is folded over or under the lower edge of the cone and is extended up on the inner and outer surfaces of said cone to form side walls 20, 21, of a channeled shaped cuff having its bottom wall 22 engaged with the lower edge of the cone, and the said cufi is secured in fixed relation to the cone by cement or other adhesive.

In this manner the convolutions at the base of the cone are practically sealed by a protective layer or cuif, which prevents liability of the convolutions at the base of the cone being accidentally opened up or separated in handling or transportation, which if allowed to take place would permit the helically wound strip comprising the cone to be unraveled and the cone to be rendered useless or at least unfitted for practical service until repaired.

In addition, the cufi serves to reinforce the cone at its base'and thereby greatly strengthen the same, and enables it to withstand comparatively severe usage in handling.

The upper end 6 of the cone is provided with a smooth, outer surface 25, which is rounded in toward the axial center of the cone, and which may be effected by applying a suitable tool to the end of the cone while the latter is revolving. The rounded-in, smooth outer surface 25 oifers no obstruction to the yarn, thread or the like when the latter is being unwound from the cone, which is highly desirable in practical use, as

breakage of fine yarns, silks, etc., are avoided with the attending loss in material, and time for repairing breaks in the yarn.

Claims.

1. A hollow body composed of a strip of fibrous material wound into a plurality of overlapping convolutions cemented together, and a cufi" of fibrous material folded over one end of the hollow body and adhesively afliXed to the inner and outer surfaces thereof.

2. A hollow conical body composed of a strip of fibrous material wound into a plurality of overlapping convolutions which are cemented together and having the uppermost convolutions of the conicial body rounded in toward the axial center of the said conical body to provide the latter at its upper end with a smooth outer rounded-in surface and having at its lower end a cuff fibrous material folded over the lower edge I of said conical body and adhesively ailixed to the inner and outer surfaces thereof.

In testimony whereof, I have signed my name to this specification.

JOHN C. WARD.

fiopleo of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. 0. 

